A strange man is found by a girl and her family and nursed back to health. He appears to have lost all of his memories, and can't seem to remove a mask of bone affixed to his forehead.

Hakuoro takes over command of the station which he captures, beginning to strategically lead a large-scale rebellion. When rallying troops to rise up against the oppressive government, however, he runs into Benawi, the empire's Samurai leader.

After a climatic battle and the final pieces of Hakouro's past being revealed, Hakouro makes a very difficult decision that will forever have an impact on the future.